Redis
This extension may be referenced by the qualified name envoy.health_checkers.redis
Note
This extension is not hardened and should only be used in deployments where both the downstream and upstream are trusted.
Redis health checker configuration overview.
config.health_checker.redis.v2.Redis
[config.health_checker.redis.v2.Redis proto]
{
"key": "..."
}
key
(string) If set, optionally perform EXISTS <key>
instead of PING
. A return value from Redis of 0 (does not exist) is considered a passing healthcheck. A return value other than 0 is considered a failure. This allows the user to mark a Redis instance for maintenance by setting the specified key to any value and waiting for traffic to drain.
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